Chem 1C solubility rules

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idk if this is right. google and my notes say different things. 😂🔫

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8 Terms

1
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Li+, Na+, K+, and NH4+ (ammonium)

always soluble —> no exceptions

2
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NO3- (nitrate) and C2H3O2 (acetate)

always soluble —> no exceptions

3
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Cl-, Br-, and I-

soluble

exceptions: when paired with Ag+, Hg2 2+, or Pb2+ = insoluble

  • PMS: lead (Pb), mercury (Hg), silver (Ag+)

4
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SO4 2- (sulfate)

soluble

exceptions: when paired with Ag+, Hg2 2+,Pb2+, Sr2+, Ba2+, Ca2+ = insoluble

  • PMS: lead (Pb), mercury (Hg), silver (Ag+)

  • CBS: calcium (Ca), barium (Ba), strontium (Sr)

5
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OH- (hydroxide) and S2-

insoluble

exceptions: when paired with Li+, Na+, K+, or NH4+ = soluble

  • LPSA: lithium (Li), potassium (K), sodium (Na), NH4+ (ammonium)

6
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OH- (hydroxide)

insoluble

exceptions: when paired with Sr2+, Ba2+, Ca2+ = slightly soluble

  • CBS: calcium (Ca), barium (Ba), strontium (Sr)

7
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S2-

insoluble

exceptions: when paired with Sr2+, Ba2+, Ca2+ = soluble

  • CBS: calcium (Ca), barium (Ba), strontium (Sr)

8
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CO3 2- (carbonate) and PO4 3- (phosphate)

insoluble

exceptions: when paired with Li+, Na+, K+, or NH4+ = soluble

  • LPSA: lithium (Li), potassium (K), sodium (Na), NH4+ (ammonium)